package com.shangxia.gateway.filter;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.annotation.Order;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.util.MultiValueMap;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;


/**
 * @ProjectName: sxcloud
 * @ClassName: AuthorizeFilter
 * @Time: 2021/11/5
 * @Author: zhouy
 * @Description:
 * @Experience:
 */

@Slf4j
//@Component
//保证优先执行
@Order(-1)
public class AuthorizeFilter implements GlobalFilter {

    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        ServerHttpRequest request = exchange.getRequest();
        MultiValueMap<String, String> queryParams = request.getQueryParams();
        String name = queryParams.getFirst("name");
        if ("zhang".equals(name)) {
            return chain.filter(exchange);
        }
        exchange.getResponse().setStatusCode(HttpStatus.UNAUTHORIZED);
        return exchange.getResponse().setComplete();
    }
}
